Resources, Infrastructure Systems and built Environments

Department of Civil & Structural Engineering

On the use of random graphs in analysing resource utilization in urban systems


Urban resource models increasingly rely on implicit network formulations. Resource consumption behaviours documented in the existing empirical studies are ultimately by-products of the network abstractions underlying these models. Here, we present an analytical formulation and examination of a generic demand-driven network model that accounts for the effectiveness of resource utilization and its implications for policy levers in addressing resource management in cities. We establish simple limiting boundaries to systems' resource effectiveness. These limits are found not to be a function of system size and to be simply determined by the system's average ability to maintain resource quality through its transformation processes. We also show that resource utilization in itself does not enjoy considerable size efficiencies with larger and more diverse systems only offering increased chances of finding matching demand and supply between existing sectors in the system.

Publication details

Publication type: 
Journal article

Research project(s)

ENCORE Network +

The E ngineering C omplexity R esilience N etwork plus Complexity Science is…. … the scientific study of complex systems , systems with many parts that interact to produce global behaviour that cannot easily be explained in terms of interactions between the individual constituent elements. Complex systems include IT networks,...